package servlet;

import pojo.Dept;
import service.DeptService;
import service.impl.DeptServiceImpl;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;

//注解
@WebServlet(urlPatterns = "/dept")
public class DeptServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        doPost(req, resp);
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        DeptService deptService = new DeptServiceImpl();
        req.setCharacterEncoding("UTF-8");
        String action = req.getParameter("action");
        if ("list".equals(action)) {
            // 获取参数
            String name = req.getParameter("name");

            Dept condition = new Dept(name);

            List<Dept> depts = deptService.findAll(condition);
            // 把数据放到请求域中
            req.setAttribute("depts", depts);
            req.setAttribute("condition", condition);
            // 在哪个页面显示数据
            req.getRequestDispatcher("/list.jsp").forward(req, resp);
        } else if ("delete".equals(action)) {
            // 获取参数
            String sid = req.getParameter("id");
            int id = Integer.parseInt(sid);
            int result = deptService.deleteDeptById(id);
            if (result > 0) {
                // 重定向
                resp.sendRedirect("dept?action=list");
            } else {
            }
        } else if ("add".equals(action)) {
            // 获取参数
            String name = req.getParameter("name");
            String pass = req.getParameter("pass");
            int result = deptService.addDept(new Dept(name));
            if (result > 0) {
                // 重定向
                resp.sendRedirect("dept?action=list");
            } else {

            }
        } else if ("toupdate".equals(action)) {
            // 获取参数
            String sid = req.getParameter("id");
            int id = Integer.parseInt(sid);
            Dept dept = deptService.findDeptById(id);
            // 把数据放到请求域中
            req.setAttribute("dept", dept);
            // 在哪个页面显示数据
            req.getRequestDispatcher("/updateDept.jsp").forward(req, resp);
        } else if ("update".equals(action)) {
            // 获取参数
            String sid = req.getParameter("id");
            int id = Integer.parseInt(sid);
            String name = req.getParameter("name");
            int result = deptService.updateDept(new Dept(id,name));
            if (result > 0) {
                // 重定向
                resp.sendRedirect("dept?action=list");
            } else {
            }

        }
    }
}
